Full movie description "Legends of Tomorrow Destiny":

When the Time Masters reveal that they are in league with Savage, Hunter and his team are arrested except for Sara and Snart. Savage takes Kendra and goes to the past. Time Master Druce tells Hunter why Savage is vital to the time line but Hunter doesn't accept it. He also tells Hunter that everything he has done was because the Time Masters has been controlling him and his team. When they think there's no need to keep them alive, they're about to be executed when Sarah and Snart rescues them. Hunter decides they need to destroy the Time Masters' means to control them.

Reviews of the Legends of Tomorrow Destiny

This show has gotten better week by week. Now we enter the second last
episode, and boy it delivers. We really get to see how far certain
characters have evolved from the first episode... Pretty straight
forwardly actually. This episode made me realize how Well they have
explained time-travel; a thing I was really worried about when the show
was beginning. All the characters except for maybe Kendra got
satisfying amount of screen time as well. The way it all starts to come
together left me so excited for next week's finale. If you or someone
you know aren't watching this yet, now is the time: Tune in for the
first episodes and have fantastic eleven-to-twelve hours.